CN112476327B

CN112476327B - ABS bushing assembling tool and assembling process method thereof

Info

Publication number: CN112476327B
Application number: CN202011409272.9A
Authority: CN
Inventors: 于雪春; 曲启鹏; 宋宗林
Original assignee: QINGDAO HAITONG AUTO AXLE CO Ltd
Current assignee: QINGDAO HAITONG AUTO AXLE CO Ltd
Priority date: 2020-12-06
Filing date: 2020-12-06
Publication date: 2022-07-12
Anticipated expiration: 2040-12-06
Also published as: CN112476327A

Abstract

The invention discloses an ABS bushing assembling tool, which comprises a rod body and a pneumatically-impacted gun body, wherein a machine head is arranged at the front end of the gun body, a locking groove is formed in the rear side of the machine head, a limiting table is arranged on the rear side of the locking groove, and the rod body is connected with the machine head through a connecting piece. The impact head is arranged at one end of the rod body, the diameter of the cross section of the impact head is the same as the outer diameter of the lining, the limiting block is arranged at the rear end of the impact head, the clamping block is arranged in the middle of the rod body and divides the rod body into a front section and a rear section, the rear section is connected with the machine head in an inserting and combining mode, and the impact head, the limiting block, the clamping block and the rod body are integrally formed in the manufacturing process. The invention has simple structure, convenient use, high assembly efficiency, low labor intensity and high yield, can be assembled in 2 seconds and has the yield of more than 99.5 percent.

Description

ABS bushing assembling tool and assembling process method thereof

Technical Field

The invention relates to the technical field of knuckle assembly, in particular to an ABS bushing assembly tool and an assembly process method thereof.

Background

The ABS bush assembled on the steering knuckle is in interference fit with the steering knuckle (namely, the interference value of a workpiece and a hole is relied on, elastic pressure is generated between the surfaces of parts after assembly, and accordingly fastening connection is obtained), the assembly is not easy, manual operation is needed in the whole process, as shown in figure 1, the working state diagram of assembling the ABS bush on the steering knuckle in the prior art is realized, the assembly method is that a guide tool 2 and an iron hammer 1 are used, the bush 3 is firstly placed on a bush hole 4, then the guide tool 2 is aligned to and tightly attached to the bush 3 (the bush is in a copper cylindrical structure), and the iron hammer 1 is used for striking the guide tool 2, so that the bush 3 is driven into the bush hole 4 of the steering knuckle 5. The batch operation causes the labor intensity of operators to be large, the assembly beat is slow, 1 assembly is carried out in one minute, the quality problem of the steering knuckle is caused by very easy deviation, and the rejection rate is high (about 5%). In view of the technical problem, an ABS bushing assembling tool and an ABS bushing assembling process method which have the advantages of simple structure, convenient use, high assembling efficiency, low labor intensity and high yield are needed.

Disclosure of Invention

The invention aims to provide an ABS bushing assembling tool and an ABS bushing assembling process method, which are simple in structure, convenient to use, high in assembling efficiency, low in labor intensity and high in yield.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an ABS bush assembly fixture, includes the rifle body of barred body and pneumatic impact, wherein, the front end of the rifle body is provided with the aircraft nose, and the rear side of aircraft nose is provided with the locking groove, and the rear side in locking groove is provided with spacing platform, is connected through the connecting piece between barred body and the aircraft nose.

Furthermore, one end of the rod body is provided with an impact head, the diameter of the cross section of the impact head is the same as the outer diameter of the bush, the rear end of the impact head is provided with a limiting block, the middle of the rod body is provided with a clamping block, the rod body is divided into a front section and a rear section by the clamping block, the rear section is connected with the machine head in an inserting and combining manner, and the impact head, the limiting block, the clamping block and the rod body are integrally formed during manufacturing.

Furthermore, a righting head is arranged at the front end of the connecting piece, a sleeve opening is arranged at the rear end of the connecting piece, the middle of the connecting piece is a raised cavity, a cross opening is arranged on the raised cavity, a circular groove is formed in the inner wall of the cavity, the cross opening is located at the groove, an assembling opening is arranged on the side wall of the righting head, a semicircular expansion gap is arranged at the rear end of the assembling opening, and the expansion gap is located at the cavity; the rear section of the rod body is obliquely inserted into the cavity along the expansion gap, the fixture block is positioned in the cavity of the connecting piece and can move back and forth in the cavity, after the sleeve opening is sleeved with the machine head, the sleeve opening is pressed on the limiting table, the groove in the cavity is positioned above the locking groove of the machine head, the groove and the locking groove form a circular locking cavity channel, the locking spring is inserted along the cross-shaped opening, and the locking spring is plugged into and surrounds the locking cavity channel to lock the connecting piece onto the machine head.

Further, the rear end of the gun body is provided with a handle, a pressing handle is arranged on the handle, an air pipe is arranged at the bottom of the handle, an air cylinder is arranged in the gun body, compressed air of an external air source enters the handle through the air pipe, air quantity is adjusted through the pressing handle to enter the air cylinder, a piston is pushed, then the rod body is driven to form impact, an impact head at the front end of the rod body impacts the lining, the lining is impacted into a lining hole of the steering knuckle, and the interference fit operation of the lining and the lining hole is completed. (working principle of pneumatic percussion drill gun)

Further, including the bracket, the bracket is the cuboid structure, is provided with a plurality of support bars on the bracket, is provided with a plurality of trepanning and supporting disk between the adjacent support bar, and the back shaft of corresponding knuckle inserts along corresponding trepanning, and the ring flange of knuckle matches the location with corresponding supporting disk, and then the bush hole of the knuckle that makes up, has placed a plurality of knuckles of waiting to assemble the bush on a bracket.

The device comprises a motion track and a portal frame, wherein a bracket is positioned on the motion track, the middle part of the portal frame is connected with an upper plate through a plurality of first oil cylinders, the upper plate is connected with a lower plate through a plurality of springs, the lower plate is provided with a plurality of mounting frames, the mounting frames are provided with gun bodies, second oil cylinders are arranged on two sides of the portal frame, the lower ends of the two second oil cylinders are fixedly connected with a correction plate, the correction plate is integrally formed with a plurality of correction holes, and the correction holes are used for accommodating one or more bushings; the air pipe is uniformly connected to an external air source and is used as a switch to replace the pressing handle through the electromagnetic valve. The movement track drives the bracket to move to the position below the portal frame, the second oil cylinder drives the correction plate to move downwards, the correction plate moves to the position between the two support shafts of the steering knuckle and is tightly attached to the surface of the steering knuckle, the corresponding correction hole corresponds to the bush hole of the corresponding steering knuckle, the first oil cylinder drives the upper plate and the lower plate to move downwards, the lower plate drives the gun body to align to the bush arranged in the correction hole to impact, the bush is punched into the bush hole from the correction hole, the first oil cylinder and the second oil cylinder are lifted, and the movement track drives the bracket to move to the next process.

In order to better achieve the purpose of the invention, the invention also provides an assembly process method (manual assembly mode) of the ABS bush assembly tool, which comprises the following operation steps:

A. placing the bushings, namely placing a plurality of steering knuckles on a bracket conveyed by a forklift in the previous process, and manually placing the bushings on the bushing holes one by an operator;

B. strike the step of packing into the bush, hold the rifle body on the other hand, the impact head is facing to corresponding bush, and the handle is pressed to the thumb, and the compressed air of outside air supply passes through the trachea and gets into the handle, carries out tolerance through pressing the handle and adjusts and get into the cylinder, promotes the piston, and then drives the barred body and form the impact, and the stopper prevents excessive impact, and it is downthehole to go into the bush with the speed of 2 seconds one, strikes the operation in proper order to other bushes of having put after that.

In order to better achieve the purpose of the invention, the invention also provides an assembly process method (automatic assembly mode) of the ABS bush assembly tool, which comprises the following operation steps:

s1, a step of placing bushings, which is to place a plurality of steering knuckles on a bracket conveyed by a moving rail in the previous process, and control the second oil cylinder to descend, the second oil cylinder drives the correcting plate to move downwards, the correcting plate moves to the position between two supporting shafts of the steering knuckles and is tightly attached to the surfaces of the steering knuckles, the corresponding correcting holes correspond to the bushing holes of the corresponding steering knuckles, 1 or more bushings are manually placed in the correcting holes of the correcting plate,

and S2, the first oil cylinder drives the upper plate and the lower plate to move downwards, the lower plate drives the gun body to align with a lining arranged in the correction hole to impact, the lining is punched into the lining hole from the correction hole, the first oil cylinder and the second oil cylinder are lifted, and the moving track drives the bracket to move to the next procedure. The method can further improve the intelligent operation and the operation amount, and one worker can attend 4 portal frames.

Compared with the prior art, the invention has the beneficial effects that: simple structure, convenient to use, assembly efficiency is high, low in labor strength and yield are high, assemble one in 2 seconds soon, and the yield is more than 99.5%.

Drawings

Figure 1 is a view showing an operation state of a prior art knuckle assembled with an ABS bushing,

figure 2 is a schematic view of the gun body structure of the present invention,

figure 3 is a schematic view of the structure of the stick of the invention,

figure 4 is a schematic view of the locking spring of the present invention,

figure 5 is a schematic view of the construction of the connector of the present invention,

fig. 6 is a schematic left-side view of fig. 5.

Fig. 7 is a schematic top view of fig. 5.

Fig. 8 is a bottom view of fig. 5.

Fig. 9 is a state view of the bracket of the manual assembly mode of the present invention.

Fig. 10 is a state diagram of the automatic assembly mode of the present invention.

The attached drawings are as follows:

1. hammer 2, guiding tool 3 and bush

4. Bushing hole 5, steering knuckle 6 and machine head

7. Limiting table 8, gun body 9 and pressing handle

10. Handle 11, air pipe 12 and impact head

13. Stopper 14, fixture block 15 and rod body

16. Locking spring 17, centering head 18 and cross opening

19. Cover opening 20, connecting piece 21 and assembly opening

22. Expansion gap 23, bracket 24 and support strip

25. Moving track 26, correction plate 27 and correction hole

28. Mounting bracket 29, first hydro-cylinder 30, upper plate

31. Lower plate 32, spring 33, and second cylinder

151. Front section 152, rear section 161 and locking groove

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

As shown in fig. 2-10, an ABS bushing assembling tool comprises a rod 15 and a pneumatically-impacted gun body 8, wherein a nose 6 is arranged at the front end of the gun body 8, a locking groove 161 is arranged at the rear side of the nose 6, a limiting table 7 is arranged at the rear side of the locking groove 161, and the rod 15 is connected with the nose 6 through a connecting piece 20. One end of the stick body 15 is provided with an impact head 12, the diameter of the cross section of the impact head 12 is the same as the outer diameter of the bushing 3, the rear end of the impact head 12 is provided with a limiting block 13, the middle part of the stick body 15 is provided with a clamping block 14, the clamping block 14 divides the stick body 15 into a front section 151 and a rear section 152, the rear section 152 is connected with the machine head 6 in an inserting and combining manner, and the impact head 12, the limiting block 13, the clamping block 14 and the stick body 15 are integrally formed during manufacturing. The front end of the connecting piece 20 is provided with a righting head 17, the rear end of the connecting piece 20 is provided with a sleeve opening 19, the middle part of the connecting piece 20 is a raised cavity and is provided with a cross opening 18, the inner wall of the cavity is provided with a circular groove, the cross opening 18 is positioned at the groove, the side wall of the righting head 17 is provided with an assembling opening 21, the rear end of the assembling opening 21 is provided with a semicircular expansion gap 22, and the expansion gap 22 is positioned at the cavity; the rear section 152 of the rod body 15 is obliquely inserted into the cavity along the expansion gap 22, the fixture block 14 is positioned in the cavity of the connecting piece 20 and can move back and forth in the cavity, after the sleeve opening 19 is sleeved with the machine head 6, the sleeve opening 19 is pressed on the limiting table 7, the groove in the cavity is positioned above the locking groove 161 of the machine head 6, the groove and the locking groove 161 form a circular locking cavity channel, the locking spring 16 is inserted along the cross-shaped opening 18, and the locking spring 16 is inserted into and surrounds the locking cavity channel so as to lock the connecting piece 20 on the machine head 6. The rear end of the rifle body 8 is provided with handle 10, be provided with on the handle 10 and press handle 9, the bottom of handle 10 is provided with trachea 11, be provided with the cylinder in the rifle body 8, the compressed air of outside air supply passes through trachea 11 and gets into handle 10, carry out tolerance through pressing handle 9 and adjust and get into the cylinder, promote the piston, and then drive barred body 15 and form and strike, barred body 15 front end strikes the head and strikes bush 3, in strikeing bush 3 into the bush hole 4 of knuckle 5, accomplish the interference fit operation of bush 3 and bush hole 4. (the gun body is the working principle of the pneumatic percussion drill).

Further, including bracket 23, bracket 23 is the cuboid structure, is provided with a plurality of support bars 24 on bracket 23, is provided with a plurality of trepanning and supporting disk between the adjacent support bar 24, and the back shaft of corresponding knuckle 5 inserts along corresponding trepanning, and the ring flange of knuckle 5 matches the location with corresponding supporting disk, and then the bush hole 4 of knuckle 5 that makes up, has placed a plurality of knuckles of wearing the assembly bush (usually a bracket is put two rows, places 20-30 knuckles altogether).

Further, the device comprises an integrated impact device, the impact device comprises a motion track 25 and a portal frame, a bracket 23 is positioned on the motion track 25, the middle part of the portal frame is connected with an upper plate 30 through a plurality of first oil cylinders, the upper plate 30 is connected with a lower plate 31 through a plurality of springs, the lower plate 31 is provided with a plurality of mounting frames 28, the mounting frames 28 are assembled with gun bodies 8, two sides of the portal frame are provided with second oil cylinders 33, the lower ends of the two second oil cylinders 33 are fixedly connected with a correction plate 26, the correction plate 26 is integrally formed with a plurality of correction holes 27, and the correction holes 27 are used for accommodating one or more bushings 3; the air pipe 11 is connected to an external air source in a unified way and is used as a switch to replace the pressing handle 9 through a solenoid valve. The moving rail 25 drives the bracket 23 to move to a position below a portal frame, the second oil cylinder 33 drives the correction plate 26 to move downwards, the correction plate 26 moves to a position between two support shafts of the steering knuckle 5 and is tightly attached to the surface of the steering knuckle 5, the corresponding correction hole 27 corresponds to the bush hole 4 of the corresponding steering knuckle 5, the first oil cylinder 29 drives the upper plate 30 and the lower plate 31 to move downwards, the lower plate 31 drives the gun body 8 to impact with a bush 3 arranged in the correction hole 27, the bush 3 is flushed into the bush hole 4 from the correction hole 27, the first oil cylinder 29 and the second oil cylinder 33 are lifted, and the moving rail 25 drives the bracket 23 to move to the next working procedure.

In order to better achieve the object of the present invention, the present invention further provides an assembly process method (manual assembly mode) of the ABS bushing assembly fixture (as shown in fig. 9), which comprises the following operation steps:

A. a step of placing the bushes, in which a plurality of knuckles 5 have been placed on a bracket 23 conveyed by a forklift in the previous process, and an operator manually places the bushes 3 one by one on the bush holes 4;

B. the step of assaulting the bush of packing into, hold the rifle body 8 on the one hand, handle 10 is held on the other hand, impact head 12 is facing to corresponding bush 3, the thumb is pressed and is pressed handle 9, the compressed air of outside air supply passes through trachea 11 and gets into handle 10, carries out tolerance regulation and gets into the cylinder through pressing handle 9, promotes the piston, and then drives barred body 15 and form and assault, stopper 13 prevents excessive impact, and it is downthehole to rush into the bush with the bush at the speed of 2 seconds one, and the operation is strikeed in proper order to other bushes of having put after that.

In order to better achieve the object of the present invention, the present invention further provides an assembly process method (automatic assembly mode) of the ABS bushing assembly fixture (as shown in fig. 10), which comprises the following operation steps:

s1, a step of placing the bush, facing the bracket 23 which is transported by the moving rail 25 in the previous process, on which a plurality of knuckles 5 have been placed, controlling the second cylinder 33 to descend, the second cylinder 33 driving the correcting plate 26 to move downward, the correcting plate 26 moving to a position between two support shafts of the knuckle 5 and being closely attached to the surface of the knuckle 5, the corresponding correcting hole 27 corresponding to the bush hole 4 of the

corresponding knuckle

5, 1 or more bushes 3 being manually inserted into the correcting hole 27 of the correcting plate 26,

s2, the first oil cylinder 29 drives the upper plate 30 and the lower plate 31 to move downwards, the lower plate 31 drives the gun body 8 to align with the bush 3 loaded in the correction hole 27 to impact, the bush 3 is punched into the bush hole 4 from the correction hole 27, the first oil cylinder 29 and the second oil cylinder 33 are lifted, and the moving track 25 drives the bracket 23 to move to the next process. The method can further improve the intelligent operation and the operation amount, and one worker can attend 4 portal frames.

And (3) effect comparison:

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An ABS bush assembly fixture comprises a rod body (15) and a pneumatic impact gun body (8), and is characterized in that a machine head (6) is arranged at the front end of the gun body (8), a locking groove (161) is arranged on the rear side of the machine head (6), a limiting table (7) is arranged on the rear side of the locking groove (161), the rod body (15) is connected with the machine head (6) through a connecting piece (20), an impact head (12) is arranged at one end of the rod body (15), the diameter of the cross section of the impact head (12) is the same as the outer diameter of a bush (3), a limiting block (13) is arranged at the rear end of the impact head (12), a clamping block (14) is arranged in the middle of the rod body (15), the clamping block (14) divides the rod body (15) into a front section (151) and a rear section (152), the rear section (152) is connected with the machine head (6) in an inserting and inserting mode, the impact head (12), the limiting block (13), the clamping block (14) and the rod body (15) are integrally formed during manufacturing, a centralizing head (17) is arranged at the front end of a connecting piece (20), a sleeve opening (19) is arranged at the rear end of the connecting piece (20), a raised cavity is arranged in the middle of the connecting piece (20), a cross-shaped opening (18) is arranged on the raised cavity, a circular groove is arranged on the inner wall of the cavity, the cross-shaped opening (18) is positioned at the groove, an assembling opening (21) is arranged on the side wall of the centralizing head (17), a semicircular expansion gap (22) is arranged at the rear end of the assembling opening (21), and the expansion gap (22) is positioned at the cavity; the rear section (152) of the rod body (15) is obliquely inserted into the cavity along the expansion gap (22), the fixture block (14) is positioned in the cavity of the connecting piece (20) and can move back and forth in the cavity, the sleeve opening (19) is propped against the limiting table (7) after being sleeved with the machine head (6), a groove in the cavity is positioned above a locking groove (161) of the machine head (6), the groove and the locking groove (161) form a circular locking cavity, the locking spring (16) is inserted along the cross-shaped opening (18), and the locking spring (16) is plugged into and surrounds the locking cavity to lock the connecting piece (20) onto the machine head (6).

2. The ABS bush assembling tool according to claim 1, wherein a handle (10) is arranged at the rear end of the gun body (8), a pressing handle (9) is arranged on the handle (10), an air pipe (11) is arranged at the bottom of the handle (10), an air cylinder is arranged in the gun body (8), compressed air of an external air source enters the handle (10) through the air pipe (11), air quantity adjustment is performed through the pressing handle (9) to enter the air cylinder, a piston is pushed to further drive the rod body (15) to form impact, the impact head at the front end of the rod body (15) impacts the bush (3), the bush (3) is impacted into the bush hole (4) of the knuckle (5), and interference fit operation of the bush (3) and the bush hole (4) is completed.

3. The ABS bush assembling tool according to claim 2, further comprising a bracket (23), wherein the bracket (23) is of a cuboid structure, a plurality of supporting bars (24) are arranged on the bracket (23), a plurality of sleeve holes and supporting discs are arranged between adjacent supporting bars (24), the supporting shafts of corresponding steering knuckles (5) are inserted along the corresponding sleeve holes, flange plates of the steering knuckles (5) are matched and positioned with the corresponding supporting discs, so that the sleeve holes (4) of the steering knuckles (5) face upwards, and a plurality of steering knuckles with assembled bushes are placed on the bracket (23).

4. The ABS bush assembling tool according to claim 3, further comprising an integrated impact device, wherein the impact device comprises a moving track (25) and a gantry, a bracket (23) is located on the moving track (25), the middle part of the gantry is connected with an upper plate (30) through a plurality of first oil cylinders, the upper plate (30) is connected with a lower plate (31) through a plurality of springs, the lower plate (31) is provided with a plurality of mounting frames (28), the mounting frames (28) are provided with gun bodies (8), two sides of the gantry are provided with second oil cylinders (33), the lower ends of the two second oil cylinders (33) are fixedly connected with correction plates (26), the correction plates (26) are integrally formed and provided with a plurality of correction holes (27), and the correction holes (27) are used for accommodating one or more bushes (3); the air pipe (11) is uniformly connected to an external air source and is used as a switch to replace the press handle (9) through a solenoid valve.

5. The ABS bush assembling tool according to claim 4, wherein the moving rail (25) drives the bracket (23) to move to a position below a portal frame, the second oil cylinder (33) drives the correcting plate (26) to move downwards, the correcting plate (26) moves to a position between two support shafts of the steering knuckle (5) and is tightly attached to the surface of the steering knuckle (5), the corresponding correcting hole (27) corresponds to the bush hole (4) of the corresponding steering knuckle (5), the first oil cylinder (29) drives the upper plate (30) and the lower plate (31) to move downwards, the lower plate (31) drives the gun body (8) to impact the bush (3) installed in the correcting hole (27), the bush (3) is flushed into the bush hole (4) from the correcting hole (27), the first oil cylinder (29) and the second oil cylinder (33) are lifted, and the moving rail (25) drives the bracket (23) to move to the next process.

6. An assembling process method of the ABS bush assembling tool according to claim 5, characterized by comprising the following operation steps:

A. a step of placing the bushings, in which a plurality of steering knuckles (5) have been placed on a bracket (23) conveyed by a forklift in the previous process, and an operator manually places the bushings (3) on the bushing holes (4) one by one;

B. strike the step of packing into the bush, hold up rifle body (8) on the one hand, handle (10) are held on the other hand, it is facing to corresponding bush (3) to strike head (12), the thumb is pressed and is pressed handle (9), the compressed air of outside air supply passes through trachea (11) and gets into handle (10), carry out tolerance through pressing handle (9) and adjust and get into the cylinder, promote the piston, and then drive barred body (15) and form the impact, stopper (13) prevent excessive impact, it is downthehole to dash into the bush with the speed of 2 seconds one, strike the operation in proper order to other bushes of having put after that.

7. An assembling process method of the ABS bush assembling tool according to claim 6, characterized by comprising the following operation steps:

s1, a step of placing the bushings, which is to face the bracket (23) conveyed by the moving track (25) in the previous process, a plurality of steering knuckles (5) are already placed on the bracket, the second oil cylinder (33) is controlled to descend, the second oil cylinder (33) drives the correcting plate (26) to move downwards, the correcting plate (26) moves to the position between two supporting shafts of the steering knuckles (5) and is tightly attached to the surfaces of the steering knuckles (5), the corresponding correcting holes (27) correspond to the bushing holes (4) of the corresponding steering knuckles (5), 1 or more bushings (3) are manually installed in the correcting holes (27) of the correcting plate (26),

s2, the first oil cylinder (29) drives the upper plate (30) and the lower plate (31) to move downwards, the lower plate (31) drives the gun body (8) to align with the bushing (3) installed in the correction hole (27) to impact, the bushing (3) is punched into the bushing hole (4) from the correction hole (27), the first oil cylinder (29) and the second oil cylinder (33) are lifted, and the moving rail (25) drives the bracket (23) to move to the next working procedure.